The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer

PurposeWe proposed a Haar feature-based method for tracking endoscopic ultrasound (EUS) probe in diagnostic computed tomography (CT) and Magnetic Resonance Imaging (MRI) scans for guiding hydrogel injection without external tracking hardware. This study aimed to assess the feasibility of implementin...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ziwei Feng, Hamed Hooshangnejad, Eun Ji Shin, Amol Narang, Muyinatu A. Lediju Bell, Kai Ding
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	endoscopic ultrasound (EUS) probe tracking hydrogel spacer pancreatic cancer Haar feature radiation therapy Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282
Acceso en línea:	https://doaj.org/article/8df153df018743b587f67a1c8ae569a8
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:8df153df018743b587f67a1c8ae569a8
record_format	dspace
spelling	oai:doaj.org-article:8df153df018743b587f67a1c8ae569a82021-11-04T05:38:11ZThe Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer2234-943X10.3389/fonc.2021.759811https://doaj.org/article/8df153df018743b587f67a1c8ae569a82021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fonc.2021.759811/fullhttps://doaj.org/toc/2234-943XPurposeWe proposed a Haar feature-based method for tracking endoscopic ultrasound (EUS) probe in diagnostic computed tomography (CT) and Magnetic Resonance Imaging (MRI) scans for guiding hydrogel injection without external tracking hardware. This study aimed to assess the feasibility of implementing our method with phantom and patient images.Materials and MethodsOur methods included the pre-simulation section and Haar features extraction steps. Firstly, the simulated EUS set was generated based on anatomic information of interpolated CT/MRI images. Secondly, the efficient Haar features were extracted from simulated EUS images to create a Haar feature dictionary. The relative EUS probe position was estimated by searching the best matched Haar feature vector of the dictionary with Haar feature vector of target EUS images. The utilization of this method was validated using EUS phantom and patient CT/MRI images.ResultsIn the phantom experiment, we showed that our Haar feature-based EUS probe tracking method can find the best matched simulated EUS image from a simulated EUS dictionary which includes 123 simulated images. The errors of all four target points between the real EUS image and the best matched EUS images were within 1 mm. In the patient CT/MRI scans, the best matched simulated EUS image was selected by our method accurately, thereby confirming the probe location. However, when applying our method in MRI images, our method is not always robust due to the low image resolution.ConclusionsOur Haar feature-based method is capable to find the best matched simulated EUS image from the dictionary. We demonstrated the feasibility of our method for tracking EUS probe without external tracking hardware, thereby guiding the hydrogel injection between the head of the pancreas and duodenum.Ziwei FengZiwei FengHamed HooshangnejadHamed HooshangnejadEun Ji ShinAmol NarangMuyinatu A. Lediju BellKai DingFrontiers Media S.A.articleendoscopic ultrasound (EUS)probe trackinghydrogel spacerpancreatic cancerHaar featureradiation therapyNeoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENFrontiers in Oncology, Vol 11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	endoscopic ultrasound (EUS) probe tracking hydrogel spacer pancreatic cancer Haar feature radiation therapy Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282
spellingShingle	endoscopic ultrasound (EUS) probe tracking hydrogel spacer pancreatic cancer Haar feature radiation therapy Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282 Ziwei Feng Ziwei Feng Hamed Hooshangnejad Hamed Hooshangnejad Eun Ji Shin Amol Narang Muyinatu A. Lediju Bell Kai Ding The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer
description	PurposeWe proposed a Haar feature-based method for tracking endoscopic ultrasound (EUS) probe in diagnostic computed tomography (CT) and Magnetic Resonance Imaging (MRI) scans for guiding hydrogel injection without external tracking hardware. This study aimed to assess the feasibility of implementing our method with phantom and patient images.Materials and MethodsOur methods included the pre-simulation section and Haar features extraction steps. Firstly, the simulated EUS set was generated based on anatomic information of interpolated CT/MRI images. Secondly, the efficient Haar features were extracted from simulated EUS images to create a Haar feature dictionary. The relative EUS probe position was estimated by searching the best matched Haar feature vector of the dictionary with Haar feature vector of target EUS images. The utilization of this method was validated using EUS phantom and patient CT/MRI images.ResultsIn the phantom experiment, we showed that our Haar feature-based EUS probe tracking method can find the best matched simulated EUS image from a simulated EUS dictionary which includes 123 simulated images. The errors of all four target points between the real EUS image and the best matched EUS images were within 1 mm. In the patient CT/MRI scans, the best matched simulated EUS image was selected by our method accurately, thereby confirming the probe location. However, when applying our method in MRI images, our method is not always robust due to the low image resolution.ConclusionsOur Haar feature-based method is capable to find the best matched simulated EUS image from the dictionary. We demonstrated the feasibility of our method for tracking EUS probe without external tracking hardware, thereby guiding the hydrogel injection between the head of the pancreas and duodenum.
format	article
author	Ziwei Feng Ziwei Feng Hamed Hooshangnejad Hamed Hooshangnejad Eun Ji Shin Amol Narang Muyinatu A. Lediju Bell Kai Ding
author_facet	Ziwei Feng Ziwei Feng Hamed Hooshangnejad Hamed Hooshangnejad Eun Ji Shin Amol Narang Muyinatu A. Lediju Bell Kai Ding
author_sort	Ziwei Feng
title	The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer
title_short	The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer
title_full	The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer
title_fullStr	The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer
title_full_unstemmed	The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer
title_sort	feasibility of haar feature-based endoscopic ultrasound probe tracking for implanting hydrogel spacer in radiation therapy for pancreatic cancer
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/8df153df018743b587f67a1c8ae569a8
work_keys_str_mv	AT ziweifeng thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT ziweifeng thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT hamedhooshangnejad thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT hamedhooshangnejad thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT eunjishin thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT amolnarang thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT muyinatualedijubell thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT kaiding thefeasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT ziweifeng feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT ziweifeng feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT hamedhooshangnejad feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT hamedhooshangnejad feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT eunjishin feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT amolnarang feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT muyinatualedijubell feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer AT kaiding feasibilityofhaarfeaturebasedendoscopicultrasoundprobetrackingforimplantinghydrogelspacerinradiationtherapyforpancreaticcancer
_version_	1718445224635662336

The Feasibility of Haar Feature-Based Endoscopic Ultrasound Probe Tracking for Implanting Hydrogel Spacer in Radiation Therapy for Pancreatic Cancer

Ejemplares similares